CN205069241U - A compound post insulators of two big umbellules shape direct current for high -altitude area - Google Patents
A compound post insulators of two big umbellules shape direct current for high -altitude area Download PDFInfo
- Publication number
- CN205069241U CN205069241U CN201520202179.9U CN201520202179U CN205069241U CN 205069241 U CN205069241 U CN 205069241U CN 201520202179 U CN201520202179 U CN 201520202179U CN 205069241 U CN205069241 U CN 205069241U
- Authority
- CN
- China
- Prior art keywords
- full skirt
- umbrella
- millimeters
- big
- skirt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a compound post insulators of two big umbellules shape direct current for high -altitude area. The utility model discloses comprise glass plug, outer chute boot and tip metal flange, wherein set up silicone rubber sheathing on the plug, big full skirt that the last silicon rubber full skirt that evenly sets up of silicone rubber sheathing, this full skirt are equalled by a plurality of diameters and two umbellule skirts between the big full skirt of every double -phase neighbour are arranged and are formed, and adjacent big full skirt umbrella interval be 90-180 millimeters, and the average umbrella of a full skirt unit stretches out and is 55-90 millimeters, and big or small full skirt stretches out less than being 20-60 millimeters. The utility model discloses a greatly, the umbrella of little full skirt stretches out, umbrella interval isoparametric coordinative role, has obtained the optimalizing compound post insulators's of direct current pollution flashover characteristic umbrella skirt structure parameter, makes compound pillar insulation have the wet performance of dodging of excellent resistant dirt in the condition of the structrual height the same under to the consumption of ability greatly reduced insulator umbrella skirt material.
Description
Technical field
The utility model belongs to insulator manufacturing technology field, specifically a kind of DC composite supporting column insulator and umbrella skirt construction thereof.
Background technology
Post insulator is requisite element in electric power conveying engineering, in current conversion station, plays the important function of fastening and electric insulation, has very consequence in electric power system.Along with improving constantly of electric pressure, for traditional porcelain strut insulator, in order to meet the requirement of external insulation, its main diameter and structure height also certainly will be increasing.But for manufacturer, manufacture out and namely meet external insulation requirement, the porcelain strut insulator difficulty meeting again mechanical strength is larger.And composite insulating material is used widely in China at present because of the resistance to Flashover Characteristics of its excellence.
Research institution has carried out more research to the DC Flashover Characteristics of the porcelain strut insulator of different umbrella skirt construction both at home and abroad at present.Because silastic surface has good migration of hydrophobicity, make composite post insulator stain surface electric arc developing characteristics and porcelain strut insulator differ greatly, therefore, both DC Flashover Characteristics difference are very large, and the DC Flashover Characteristics of composite post insulator is obviously better than porcelain strut insulator.But the correlative study up to the present, for the umbrella skirt construction Parameters Optimal Design field of composite post insulator still belongs to blank.
For the Selection and Design of DC composite supporting column insulator, many from operating experience at present, the simple external insulation performance guaranteeing insulator from the angle increasing creepage distance.In actual motion, compared with under alternating voltage, the arc property that wafts under direct voltage makes the lending analysis of post insulator linearly not increase along with the increase of creepage distance, and a large amount of tests and operating experience show: optimize post insulator umbrella skirt construction parameter, its pollution flashover, dirty rain lightning pressure can be increased substantially.Therefore need the full skirt parameter for composite post insulator to carry out systematic research, design proposes direct current lending analysis preferably composite post insulator umbrella skirt construction.
Utility model content
The above-mentioned defect existed for avoiding existing composite insulator, the utility model provides a kind of large two little umbrella shape DC composite supporting column insulators for high altitude localities.The parameters such as it stretches out the umbrella of umbrella skirt construction, umbrella spacing are optimized design, with the DC Flashover voltage of the utilance and unit insulation height that improve creepage distance, effectively reduce the consumption of insulator umbrella material simultaneously.
The utility model is achieved through the following technical solutions:
A kind of large two little umbrella shape DC composite supporting column insulators for high altitude localities, it comprises glass plug, silicone rubber jacket, silicon rubber external shed, metal flange, silicone rubber jacket is provided with at glass plug, silicone rubber jacket is evenly laid with silicon rubber external shed, silicone rubber jacket and silicon rubber external shed are by silicon rubber sulfidization molding, wherein, silicon rubber external shed is made up of top-down multiple full skirt unit, each full skirt unit is rearranged from top to bottom by a large full skirt and two little full skirts, it is 55 ~ 90 millimeters that the average umbrella of full skirt unit stretches out the average distance namely stretched out away from silicone rubber jacket, adjacent large full skirt umbrella spacing is 90 ~ 180 millimeters, large full skirt and little full skirt to stretch out difference be 20 ~ 60 millimeters.
Further, the umbrella spacing of adjacent large full skirt is 108 millimeters, and it is 75 millimeters that the average umbrella of full skirt unit stretches out.
Further, glass plug is made up of glass fibre, installs metal flange at the two ends of glass plug.
Further, the diameter of all large full skirts is identical, so the diameter of little full skirt is identical.
Further, above-mentioned composite post insulator, scribbles one deck coupling agent between sheath and plug.
Above-mentioned composite post insulator, glass core stick end adopts end flange vacuum mucilage binding technology to install.
Compared with prior art, the composite post insulator of the utility model institute limiting structure is adopted to have the following advantages:
1. there is excellent wet pollution flashover tolerance performance, optimize umbrella skirt construction, improve unit gradient pollution flashover voltage, effectively strengthen external insulation reliability, under identical withstand voltage, significantly can reduce the consumption of insulator umbrella material.
2. use vacuum mucilage binding technology between core rod end and gold utensil, not only good airproof performance, and ensure the mucilage binding intensity of insulator flange, meet the mechanical performances such as antitorque, the bending resistance of insulator.
3. sheath and external shed are by overall vacuum injection technique, are not only convenient to batch production, and there is not the problem of aging not same period of sheath and full skirt.
4. adopt coupling agent bonding between sheath and glass core side, under avoiding adverse weather condition, aqueous vapor etc. enter sheath inside, effectively can improve wet pollution flashover tolerance and the ageing resistance of post insulator.
Accompanying drawing explanation
Fig. 1 is a DC composite supporting column insulator example structure schematic diagram;
Fig. 2 is the DC Flashover Characteristics curve of the DC composite supporting column insulator test product of five kinds of different umbrella skirt constructions.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but enforcement of the present utility model and protection are not limited thereto, and do not describe part in detail especially if having below, is all that those skilled in the art can refer to existing techniques in realizing.
DC composite supporting column insulator shown in Fig. 1 have employed the umbrella skirt construction of the utility model optimal design, in Fig. 1, and P
1for large full skirt umbrella stretches out, P
2for little full skirt umbrella stretches out, S
1for large full skirt umbrella spacing, S
2for adjacent full skirt umbrella spacing, P
1and P
2average P
aV=(P
1+ 2P
2)/3 are stretched out for average umbrella.
It is primarily of glass plug 1, outer umbrella sleeve (silicone rubber jacket 3, silicon rubber external shed 4), metal flange 2 three part composition, silicon rubber external shed 4 is made up of the unit of full skirt one by one from top to bottom, wherein, a full skirt unit is rearranged by a large full skirt 41 and two little full skirts 42, it is 55 ~ 90 millimeters that a full skirt cell-average umbrella stretches out, adjacent large full skirt umbrella spacing is 90 ~ 180 millimeters, and it is 20 ~ 60 millimeters that large umbellule stretches out difference.Silicone rubber jacket 3 and glass plug 1 effectively bonding by coupling agent, to improve the wet pollution flashover of tolerance and ageing resistance, by adhesive vacuum mucilage binding between core rod end and gold utensil, there is good resistance to tension and sealing.
This example post insulator of different umbrella skirt construction carries out Study on Numerical Simulation, determine parameter preferably full skirt parameter area: it is 55 ~ 90 millimeters that the average umbrella of a full skirt unit stretches out, it is 20 ~ 60 millimeters that large umbellule stretches out difference, and the umbrella spacing of adjacent two full skirt unit is 90 ~ 180 millimeters.
To adopt the utility model make full skirt parameter preferably DC composite supporting column insulator carry out artificial pollution resistance test, test product parameter is as following table 1.
Fig. 2 represents the DC Flashover Characteristics curve of the DC composite supporting column insulator test product of five kinds of different umbrella skirt constructions, and abscissa represents close (the unit mg/cm of salt
2, ordinate represents DC Flashover voltage U 50%(unit kV).
The parameter of table 1 DC composite supporting column insulator test product
1, the average umbrella impact of stretching out
As can be seen from Table 1, the umbrella spacing size of 1#, 2# and 3# tri-kinds of composite post insulators is identical, and large umbellule stretches out difference comparatively greatly, is respectively 65/50mm, 80/50mm and 105/60mm.The Flashover Characteristics of three is compared.
As seen from Figure 2,3# composite post insulator Flashover Characteristics is higher than 2#, 1#, and illustrate that the parameter designing of 3# composite post insulator is relatively more reasonable, its gamp stretches out P
1for 105mm, umbellule stretches out P
2for 60mm, it is 75mm that average umbrella stretches out Pav.
By analyzing above and can drawing, when to stretch out Pav be 75mm for the average umbrella of composite post insulator, its Flashover Characteristics is more excellent.
2, the impact of umbrella spacing
As shown in Table 1, it is identical that the umbrella of 3#, 4# and 5# tri-kinds of composite post insulators stretches out size, and large umbellule spacing difference is comparatively large, is respectively 108/36,129/43 and 150/50.The Flashover Characteristics of three is compared.
As can be seen from Figure 2,3# composite post insulator Flashover Characteristics, higher than 4#, 5#, illustrates that the parameter designing of 3# composite post insulator is relatively more reasonable, its gamp interval S
1for 108mm, umbellule interval S
2for 36mm.
By analyzing above and can drawing, when the umbrella interval S 1 of composite post insulator is 108mm, its Flashover Characteristics is more excellent.
Above-mentioned result of study shows: the umbrella skirt construction parameter of B3 composite post insulator, can improve DC Flashover voltage largely.
The optimum structure data of embodiment of the present utility model are as follows:
Umbrella spacing (large/little): 108/36mm;
Umbrella stretches out (greatly/little): 80/50mm;
Diameter of mandrel: 280mm.
Claims (4)
1. the large two little umbrella shape DC composite supporting column insulators for high altitude localities, it is characterized in that comprising glass plug (1), silicone rubber jacket (3), silicon rubber external shed (4), metal flange (2), glass plug is provided with silicone rubber jacket, silicone rubber jacket is evenly laid with silicon rubber external shed, silicone rubber jacket (3) and silicon rubber external shed are by silicon rubber sulfidization molding, wherein, silicon rubber external shed is made up of top-down multiple full skirt unit, each full skirt unit is rearranged from top to bottom by a large full skirt and two little full skirts, it is 55 ~ 90 millimeters that the average umbrella of full skirt unit stretches out the average distance namely stretched out away from silicone rubber jacket (3), adjacent large full skirt umbrella spacing is 90 ~ 180 millimeters, large full skirt and little full skirt to stretch out difference be 20 ~ 60 millimeters.
2. the large two little umbrella shape DC composite supporting column insulators for high altitude localities according to claim 1, it is characterized in that: the umbrella spacing of adjacent large full skirt is 108 millimeters, it is 75 millimeters that the average umbrella of full skirt unit stretches out.
3. the large two little umbrella shape DC composite supporting column insulators for high altitude localities according to claim 2, is characterized in that: glass plug is made up of glass fibre, install metal flange at the two ends of glass plug.
4. the large two little umbrella shape DC composite supporting column insulators for high altitude localities according to claim 2, is characterized in that: the diameter of all large full skirts is identical, so the diameter of little full skirt is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202179.9U CN205069241U (en) | 2015-04-03 | 2015-04-03 | A compound post insulators of two big umbellules shape direct current for high -altitude area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202179.9U CN205069241U (en) | 2015-04-03 | 2015-04-03 | A compound post insulators of two big umbellules shape direct current for high -altitude area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069241U true CN205069241U (en) | 2016-03-02 |
Family
ID=55395763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520202179.9U Active CN205069241U (en) | 2015-04-03 | 2015-04-03 | A compound post insulators of two big umbellules shape direct current for high -altitude area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205069241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835604A (en) * | 2015-04-03 | 2015-08-12 | 华南理工大学 | One-large two-small umbrella-shaped DC composite post insulator used for high altitude area |
-
2015
- 2015-04-03 CN CN201520202179.9U patent/CN205069241U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835604A (en) * | 2015-04-03 | 2015-08-12 | 华南理工大学 | One-large two-small umbrella-shaped DC composite post insulator used for high altitude area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2872556Y (en) | Synthetic insulator with air dynamic umbrella-style design | |
| CN204480824U (en) | A kind of binodal Combined high-strength post composite insulator | |
| CN205069241U (en) | A compound post insulators of two big umbellules shape direct current for high -altitude area | |
| CN203966695U (en) | Low pressure compound needle type insulator | |
| CN104835604A (en) | One-large two-small umbrella-shaped DC composite post insulator used for high altitude area | |
| CN203931695U (en) | A kind of new polymers umbrella cover lightning arrester | |
| CN206322529U (en) | A kind of cylinder ripple type insulator | |
| CN203179633U (en) | Bar-shaped column-type porcelain polymer composite insulator for electrified railways | |
| CN204087941U (en) | A kind of composite suspension type insulators | |
| CN201199469Y (en) | DC claviform pillar ceramic insulator | |
| CN202126892U (en) | Hollow disc type composite insulator | |
| CN203134484U (en) | AC 220 kV outdoor rod porcelain insulator | |
| CN207517450U (en) | A kind of high ferro locomotive switchgear polymerization crystal silicon insulator | |
| CN202523492U (en) | Composite insulator | |
| CN205140638U (en) | Bell jar type exchanges resistant dirty disk suspension type and exchanges porcelain insulator | |
| CN204288980U (en) | Maintenance umbrella | |
| CN201204104Y (en) | Composite high-voltage insulator | |
| CN205122305U (en) | Big creep distance three -layer umbrella toughened glass insulator | |
| CN103617845A (en) | Suspension insulator | |
| CN105845290B (en) | A kind of rod insulator Composite Insulators free of replacement | |
| CN210575302U (en) | Inflatable composite insulating material sleeve climbing-increasing umbrella skirt | |
| CN204720259U (en) | A kind of superhigh pressure hanging type silica gel isolator | |
| CN205303091U (en) | Modular porcelain insulator | |
| CN204029490U (en) | A kind of composite suspension type insulators | |
| CN219180289U (en) | Umbrella skirt structure of composite insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |